28167840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:683

約数の個数: 144

約数和(自身を含む): 99380736

約数和(自身を除く): 71212896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 631, 720, 744, 930, 992, 1116, 1240, 1262, 1395, 1440, 1488, 1860, 1893, 2232, 2480, 2524, 2790, 2976, 3155, 3720, 3786, 4464, 4960, 5048, 5580, 5679, 6310, 7440, 7572, 8928, 9465, 10096, 11160, 11358, 12620, 14880, 15144, 18930, 19561, 20192, 22320, 22716, 25240, 28395, 30288, 37860, 39122, 44640, 45432, 50480, 56790, 58683, 60576, 75720, 78244, 90864, 97805, 100960, 113580, 117366, 151440, 156488, 176049, 181728, 195610, 227160, 234732, 293415, 302880, 312976, 352098, 391220, 454320, 469464, 586830, 625952, 704196, 782440, 880245, 908640, 938928, 1173660, 1408392, 1564880, 1760490, 1877856, 2347320, 2816784, 3129760, 3520980, 4694640, 5633568, 7041960, 9389280, 14083920, 28167840]

約数ペア:

[(1, 28167840), (2, 14083920), (3, 9389280), (4, 7041960), (5, 5633568), (6, 4694640), (8, 3520980), (9, 3129760), (10, 2816784), (12, 2347320), (15, 1877856), (16, 1760490), (18, 1564880), (20, 1408392), (24, 1173660), (30, 938928), (31, 908640), (32, 880245), (36, 782440), (40, 704196), (45, 625952), (48, 586830), (60, 469464), (62, 454320), (72, 391220), (80, 352098), (90, 312976), (93, 302880), (96, 293415), (120, 234732), (124, 227160), (144, 195610), (155, 181728), (160, 176049), (180, 156488), (186, 151440), (240, 117366), (248, 113580), (279, 100960), (288, 97805), (310, 90864), (360, 78244), (372, 75720), (465, 60576), (480, 58683), (496, 56790), (558, 50480), (620, 45432), (631, 44640), (720, 39122), (744, 37860), (930, 30288), (992, 28395), (1116, 25240), (1240, 22716), (1262, 22320), (1395, 20192), (1440, 19561), (1488, 18930), (1860, 15144), (1893, 14880), (2232, 12620), (2480, 11358), (2524, 11160), (2790, 10096), (2976, 9465), (3155, 8928), (3720, 7572), (3786, 7440), (4464, 6310), (4960, 5679), (5048, 5580)]